[major]

do ac motors need specific controllers for themselves, or are they picky with which controller you couple them to?

Sometimes

if i buy this motor, is there any way i can buy a controller for it( assuming the old one is no good) and use it in an electric vehicle?

It is unlikely that a compressor has a "controller" more than a contactor or maybe a starter. And yes, if it a 3 phase induction motor, you could buy an industrial controller for it. And could you use it in an EV? Maybe. My bet is it would be a daunting task for you, but possible.

Overall, this sounds like an unwise choice even if it is free

Regards,

major

 

[major]

ok i see. is it a challenging task because the motor might not provide the right power for the vehicle, or is it the cost/rarity of an industrial controller? im just wondering because the guy wanted to sel me it as " metal scrap" for....lets say under 100$ :$

I'd say both, and then being able to configure it to the requirements of an EV.